i agree its all in ur combo.. a 331 or 347 will run no faster than 302 if not part matched correctly. i've seen 347s run 14's soo lol.
with my old 347 combo i only gotta best of 12.5 at 110. but that was with Bcam an Y303 heads. i added X cam an plan on vic. jr. heads this year, so should improve.
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